Lavatory



Jan. 7, '1947.l H, G, COORDES 2,413,811

LAVATORY Filed NOV. 24, 194.4

INVENTOR.l

Patented Jan. 7, 1.947

UNITED STATES PATENT lOFFICE LAvA'roRY lliarryk G. Coordes, Detroit, Mich., assignor to Briggs Manufacturing Company, Detroit, Mich., a corporation of Michigan Application -November 24, 1944, Serial No. 564,963

1 Claim. 1

This invention relates to lavatories, wash basins, sinks, tubs or the like and particularly to an article of this kind formed from sheet metal.

An object of the present invention is to provide an article of the above kind formed from sheet metal and having an overflow channel or conduit of improved construction pressed or otherwise formed from sheet metal and attached to the back wall of the basin or sump to provide an overflow connection between the upper back wall drain opening and the drain pipe communicating with the bottom drain outlet of the basin or sump.

A further object of this invention is to provide a pressed metal article having a basin, bowl or sump provided with a channel shaped overo-w conduit connecting the upper back wall drain opening with the drain pipe and formed with continuous laterally extending marginal langing conforming to the contour of the back and bottom walls of the basin and secured thereto as by spotwelding the anging to said walls.

Another object of the invention is to provide a pressed metal article of the kind mentioned above having a basin, bowl or sump provided with a separately formed overflow conduit formed of pressed metal which is porcelain enameled o n the inside as well as the outside surfaces thereof.

Other objects of this invention will appear in the following description and appended claim, reference being had to the accompanying drawing forming a part of this specication, wherein like reference characters designate corresponding parts in the several views.

Fig. 1 is a plan View of a lavatory or wash basin embodying the present invention.

Fig. 2 is a section taken substantially through lines 2-2 of Fig. 1 looking in the direction of the arrows.

Fig. 3 is a section taken substantially through lines 3-3 of Fig. 2 locking in the direction of the arrows.

Before explaining in detail the presentinvention it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawing, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.

Heretofore, in the production of lavatories of some cast iron types overiiow conduits have been cast integrally with the back and bottom walls of 2. the exterior appearance of the lavatory by eliminating the use of unsightly pipes, has notI only had the disadvantage of increasing considerably the weight of the lavatory and the cost of manufacture due to diflicult and expensive coring operations but also has been objectionable owing to the formation and accumulation of rust on the inside surfaces of the cast iron overflow which cannot be prevented since these surfaces are not capable of being porcelain enameled. Moreover,

' in the case of pressed metal lavatories, where it has been suggested to press or draw the overflow conduit integrally out of the metal of the basin, this has either proved impossible from a practical standpoint or has necessitated resort to a weld seam along the back and bottom of the basin ref quiring expensive finishing operations.

In accordance with the present invention an overflow conduit is first separately formed from sheet metal so as to provide a channel of adequate structural strength having continuous outturned ilanging shaped longitudinally to lit the contour of the basin, and thereafter this member is applied to the back and bottom of the basin and f spot-welded thereto at preferably closely spaced points entirely around the `anging thus producing a strong, rigid, light and exceedingly inexpensive construction. All surfaces of the overow conduit including the portion thereof formed by the back and botto-m of the basin are porcelain enameled thus preventing the formation of rust.

Referring to they drawing illustrating, by way 'of example, one embodiment of the present invention as applied to a lavatory or wash basin formed from a single blank or sheet of metal, such as sheet steel, the plumbing article, which may also be a sink, laundry tub or bathtub, comprises a drawn basin or bowl lil having an upright back wall I I merging on a curve I la of relatively small radius into a bottom wall I2 which in turn merges into anupwardly sloping curved front Wall I3. The basin or sump is also provided with upright side walls lila which merge seamlessly into the back and front walls. The front and side walls of the basin terminate at their upper edges around the three sides of the basin in a laterally extending ledge I4 of suitable width to support articles and this continuous ledge terminates in a depending apron I5 also extending continuously around the basin. The lower edge of the apron I5 terminates along the lower edge thereof in a continuous inturned ange I 6. I

The ledge I4 around the front and sides of the basin merges into a rearwardly extending horithe basin. This construction, although improving zontal ledge I'I extending the full width of the nous outwardly flanged edge 2m.

basin rearwardly of the upright back wall II thereof and this back ledge terminates in an upwardly extending splashback or panel i8 formed with a top horizontally extending ledge I9 of suitable depth which extends the full width of the basin. This ledge I8 is flanged along its rear edgeto provide a wall flange 20. The depending apron I extends continuously around the front and sides of the lavatory and terminates at the back in line with the Wall flange 2li, as shown in Fig. 2.

The back wall II near its upper end is pierced to provide a number of overflow drain openings 2l, three being shown by way of example, and

each of these openings is formed with a contin- The bottom I2 of the basin is embossed at I2@ and the bottorn of this embossment is pierced to provide a drain opening I2b. The overflow openings 2l and the bottom drain opening I2b are c-onnected by means of an overflow conduit 22 which is pressed or otherwise formed from a single blank or strip of sheet metal. This conduit is formed into a channel in cross-section as shown in Fig. 3, so as to have adequate structural strength and rigidity and is shaped longitudinally so as to conform generally to the contour of the angularly related back and bottom walls l I and I2. The channel or conduit 22, therefore, has a vertical portion extending substantially parallel to the back wall Il, a curved portion 22a formed on a greater radius than the radius of the curve Ila of the basin so as to position the bottom 22h of the channel or conduit at an increased distance from the bottom I2 of the basin` The bottom 22h of the channel or conduit extends somewhat beyond the drain opening I2b and thence ,is bent upwardly to provide an inclined portion 22o terminating in a flange portion 23 engaging and conforming to the shape of the adjacent bottom Wallof the basin. The opposite end of the overflow channel or conduit is provided with a flange 24 engaging the back wall of the basin immediately above the outlet openings 2l. Also, the sides of the channel or conduit 22 are formed with outturned flanges 25 which are shaped and bent to engage smoothly the back and bottom walls of the basin. The flanged portions 23, 24 and 25 form a continuous flanging extending entirely around the sides and ends of the channel or conduit 22 and are constructed so as to fit smoothly and uniformlyV tension 22b beneath the bottom of the basin. The channel is rigidly and permanently secured to the basin in suitable manner, such as by spotwelding or seam-welding the flanging to the back and bottom Walls of the basin entirely around the edges of the anging. Spot-welding is in the present instance indicated at points 26 which are preferably close together continuously around the flanging to provide a tight joint between the juxtaposed surface of the flanging and basin.

The bottom wall of the overflow conduit portion 22h is pierced to provide an opening in line with the drain opening I2b, and a tubular fit ting 21 extends downwardly through these openings. The upper flanged edge of the tting lies within the embossment I2a and is drawn down tightly to provide a seal by means of a coupling nut 28 which connects the drain pipe 30 to the fitting 2'I, the latter being provided with suitable openings 29 through which the water overflowing into the conduit 22 passes into the 'tting 2l and thence into the drain pipe 30. It will be seen that since the overflow conduit is yformed as a structural channel having a flat bottom wall the coupling nut 28 may be drawn up tightly against the bottom of the channel to provide a seal through the medium of an interposed gasket while at the same time obviating any danger of distorting or collapsing the conduit at the locality of the union between the fitting 25 and the drain pipe 30.

It will be understood that the term lavatory, wash basin or the like used in the claim is to be constructed as comprehending plumbing articles of the .kind hereinbefore mentioned in* cluding sinks, bathtubs, laundry tray units and laundry tubs in addition to the article shown in the drawing.

Iclaim:

A lavatory or wash basin comprising a pressed metal bowl including a `bottom and an upright back wall having drain and overilow openings respectively, said openings and comprising a channel formed from a separate blank of metal and having a flat base and outwardly extending wallsl terminating in side and end flanging extending entirely around the channel, said conduit being bent to conform said flanging to the contour of said walls and said flanging being welded to said walls to provide a uniform ght contact of the juxtaposed surfaces of the ilangingand walls, said base of the channel having a portion substantially parallel to the bottom of the bowl provided with an opening aligned with said drain opening and said base beyond the opening therein sloping upwardly and forwardly to engage the adjacent end ilanging with the bottom of the bowl.

HARRY G. COORDES.

an overflow conduit connectingv 

